My artist friend Tony Robbin makes beautiful paintings based on 4D notions such as projections of hypercube tesselations.
A couple of years back, my SJSU student Wyley Dai realized a longterm dream of mine by creating a 4D Space Invaders style game for his Master’s Thesis project. Once I’d gotten students to do 4D Space Invaders, 3D Belousov-Zhabotinsky scrolls, and a surfing game based on a CA running the wave equation — it was time to retire.
Paul Mavrides sent me a link to a psychedelic article, in a seemingly legit physics journal called Symmetry, which shows quarks as cute twists.